Synthesis, crystal structures and fluorescence properties of two 1D Zn(II) homologous coordination polymers

Zeitschrift für Naturforschung B, Journal Year: 2023, Volume and Issue: 78(1-2), P. 43 - 50

Published: Jan. 2, 2023

Abstract A pair of zinc(II)-based one-dimensional (1D) homologous coordination polymers, [Zn(Hdba) 2 (bib)] n ( 1 ) and (bmib)] ), where H dba = 3-hydroxybenzoic acid, bib 1,4-bis(1-imidazolyl)benzene, bmib 1,4-bis(2-methyl-1 -imidazol-1-yl)benzene were hydrothermally synthesized characterized through infrared spectroscopy (IR), elemental thermal analysis (EA), powder X-ray diffraction (PXRD), single-crystal (SCXRD) analyses. The results revealed that have the same zigzag infinite chain framework partially deprotonated Hdba – monodentate linkage with μ -bib bridging Zn(II) atoms in , -bmib bridges for . For both each zinc atom has a slightly twisted tetrahedral configuration N O donor set. These chains are further connected into three-dimensional (3D) supramolecular structures O–H···O, C–H···O hydrogen bonds π···π, C–H···π stacking interactions Topologically, 3D hydrogen-bonded organic or 2D π-stacking structure can be simplified as 4-connected dia Diamond type Schläfli symbol {6 6 }, sql {4 4 ·6 } Shubnikov tetragonal plane net. stability solid-state fluorescence properties investigated.

Language: Английский

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A 12-Connected [Y4((μ3-OH)4]8+ Cluster-Based Luminescent Metal-Organic Framework for Selective Turn-on Detection of F− in H2O

Molecules, Journal Year: 2023, Volume and Issue: 28(4), P. 1893 - 1893

Published: Feb. 16, 2023

Fluoride ion (F−) is one of the most hazardous elements in potable water. Over intake F− can give rise to dental fluorosis, kidney failure, or DNA damage. As a result, developing affordable, equipment-free and credible approaches for detection an important task. In this work, new three dimensional rare earth cluster-based metal-organic framework assembled from lanthanide Y(III) ion, linear multifunctional ligand 3-nitro-4,4′-biphenyldicarboxylic acid, formulated as {[Y(μ3-OH)]4[Y(μ3-OH)(μ2-H2O)0.25(H2O)0.5]4[μ4-nba]8}n (1), where H2nba = has been hydrothermally synthesized characterized through infrared spectroscopy (IR), elemental thermal analysis (EA), power X-ray diffraction (PXRD), single-crystal (SCXRD) analyses. structural revealed that 1 crystallizes tetragonal system with P4¯21m space group, features 3D 1D square 18.07(3)2 Å2 channels running along [0,0,1] c-axis direction. The structure built up unusual eight-membered rings formed by two types {Y4O4} clusters connected each other via 12 μ4-nba2− 4 μ3-OH− ligands. Three crystallographic independent Y3+ ions display coordinated configurations seven-coordinated distorted monocapped trigonal-prism (YO7) eight-coordinated approximately bicapped (YO8). further stabilized O-H⋯O, O-H⋯N, C-H⋯O, π⋯π interactions. Topologically, MOF be simplified 12-connected 2-nodal Au4Ho topology Schläfli symbol {420·628·818}{43}4 6-connected uninodal pcu {412·63}. fluorescent sensing application was investigated cations anions H2O. exhibits good luminescence probing turn-on recognition ability toward limit concentration down 14.2 μM aqueous solution (Kec 11403 M−1, R2 0.99289, σ 0.0539). findings here provide feasible platform LnMOFs highly sensitive discrimination media.

Language: Английский

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An asymmetric mononuclear cobalt(II) compound derived from 3-bromo-pyridine-2,6-dicarboxylic acid involving in-situ hydrothermal decarboxylation: structure, magnetic property and Hirshfeld surface analysis

Zeitschrift für Kristallographie - Crystalline Materials, Journal Year: 2023, Volume and Issue: 238(3-4), P. 139 - 149

Published: Feb. 18, 2023

Abstract A new cobalt(II) compound with the formula [Co(5-Br-pyc)(2,2′-bipy)(H 2 O)(Cl)]·2H O ( 1 ·H O) (5-Br-Hpyc = 5-bromo-pyridine-2-carboxylic acid, 2,2′-bipy 2,2′-bipyridine) has been hydrothermally synthesized and well characterized. The X-ray single-crystal diffraction analysis showed that ⋅2H crystallizes in monoclinic system, space group P / c (no. 14). Co(II) center was octahedrally bonded by one bidentate chelate 5-Br-pyc anion 2,2′-bipy, water molecule as chloride to form mononuclear structure of O. Complex forms a 3D network through abundant O–H⋅⋅⋅O hydrogen bonds π⋅⋅⋅π stacking interactions. Notably, 5-Br-Hpyc ligand situ generated decarboxylation 3-bromo-pyridine-2,6-dicarboxylic acid (3-Br-H pydc) precursor selectively on 2-position under hydrothermal conditions. magnetic properties, Hirshfeld surface synthetic process for have carefully described discussed.

Language: Английский

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Metallo‐phthalocyanines Containing 1,3,4‐oxadiazole Substituents: Synthesis, Characterization, Electrochemical and Spectroelectrochemical Properties

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(13)

Published: April 3, 2023

Abstract The 4‐[5‐(undecylthio)‐1,3,4‐oxadiazol‐2‐yl)phenol ( 3 )and 4‐(4‐(5‐(undecylthio)‐1,3,4‐oxadiazol‐2‐yl)phenoxy)phthalonitrile 5 )were prepared viasubstitution reactions. Metallo‐phthalocyanines 6 – 9 ) were obtained by the cyclotetramerization of phthalonitrile ). structures novel compounds verified using IR, 1 H‐NMR, mass, UV‐Vis methods. Electrochemical characterization synthesized MPcs )was carried out CV and SWV techniques in DCM/TBAP electrolyte. While MnClPc CoPc complexes exhibited metal‐based ring‐based reduction redox couples, CuPc NiPc gave two couples. Spectroelectrochemical measurements performed to observe color transition during oxidation Thus, potentials as electrochromic materials investigated. Q band at 667 nm with a shoulder 663 nm. When potential was applied cell, intensity decreased shift wavelength (from nm). In addition, natural turquoise x =0.2720, y =0.3366) turned greenish blue =0.3080, =0.3461). During reactions, species. bands without shift. As result in‐situ spectroelectrochemical measurements, it observed that NiPc, have sharper transitions be used materials.

Language: Английский

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Two water-stable Zn(II) complexes for highly sensitive sensing of Cr2O72− ions and levofloxacin

Inorganica Chimica Acta, Journal Year: 2022, Volume and Issue: 543, P. 121163 - 121163

Published: Aug. 22, 2022

Language: Английский

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Synthesis, characterization of CdII-based complexes for efficient detection of copper(II) ions and antibiotics

Transition Metal Chemistry, Journal Year: 2023, Volume and Issue: 48(3), P. 135 - 142

Published: April 26, 2023

Language: Английский

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Cyclohexane based Bis‐imine and Salicylic Acid Derived Tripodal Amide for Optical Recognition and Enrichment of Sm³⁺ and Dy³⁺

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(22)

Published: June 6, 2023

Abstract Single crystal X‐ray structurally characterized bis‐imine derivative ( P1) selectively recognizes Sm 3+ in DMSO‐water (1 : 6, v/v) media. On the other hand, salicylic acid derived tripodal amide P2 ) efficiently detects and Dy 5, v/ v) In both cases, emits intense pink light while yellow light. The P1 experiences 42‐fold fluorescence enhancement presence of . 36‐fold 23‐fold respectively. limit detections (LODs) for are 9.2×10 −8 M (by 1.04×10 −7 it is 9.67×10 ). assisted enrichment encouraging.

Language: Английский

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One-Pot Cocrystallization of Two Different 1d Cobalt(Ii) Complexes with Flexible Triclopyr and 4,4'-Bipyridine Synthons: Structural Comparison, Conformation Analyses, Non-Covalent Interactions and Magnetic Properties

Published: Jan. 1, 2023

A pair of cobalt(II) compounds with formulas [Co(3,5,6-tcpa)2(4,4'-bipy)(EtOH)]n (1A) and [Co(3,5,6-tcpa)2(4,4'-bipy)(EtOH)2]n (1B), have been cosynthesized through the solvothermal reaction cobalt chloride hexahydrate triclopyr (systematic name 2-((3,5,6-trichloropyridin-2-yl) oxy)acetic acid, abbreviation 3,5,6-Htcpa) 4,4'-bipyridine (4,4'-bipy) coligands. Single-crystal X-ray diffraction analysis indicated that complex 1A has orthorhombic system, space group Aea 2 (no. 41), while 1B showed monoclinic I2/a 15). Compound displays a 1D linear chain but presents zigzag chain, 3,5,6-tcpa anion are both unidentate between them. The non-covalent interactions C–H···O/C–H···Cl hydrogen bonds Cl···O/ Cl···Cl halogen undertake significant role in their 3D molecule packing, which further verified by careful Hirshfeld surface analyses. Based on deeply structural comparisions, it was supposed conformational flexibility might be responsible for cocrystallization 1B. Besides, magnetic determinations revealed weak antiferromagnetic interractions intrachain ions

Language: Английский

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Synthesis, Structure, and Magnetic Property of a New Cu(II) Coordination Polymer Based on Rhombic [Cu4(μ3-OH)2]6+ Clusters

Russian Journal of General Chemistry, Journal Year: 2023, Volume and Issue: 93(11), P. 2883 - 2888

Published: Nov. 1, 2023

Language: Английский

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Structural, Spectroscopic Characterization and Application of a Co(II) Coordination Polymer [Co(suc)(bpm)] ⋅ 2H₂O

ChemistrySelect, Journal Year: 2022, Volume and Issue: 7(46)

Published: Dec. 8, 2022

Abstract A Co(II) coordination polymer [Co(suc)(bpm)] ⋅ 2H 2 O ( 1 ) built from succinate (suc) and bipyrimidine (bpm) is synthesized hydrothermally characterized by different methods. It crystallizes in a monoclinic space group P / n with an intriguing 3 D polymeric architecture. The weak antiferromagnetic (AF) exchange interactions were evinced Curie Constant (C)=1.803 cm mol −1 K negative Weiss constant (φ)=−30.163 K. Type VI adsorption isotherm behavior of at 77 revealed its non‐porous property. Compound was investigated successfully utilized as additive lowering the decomposition temperature ammonium nitrate (AN) based fuels demonstrated TG DSC experiments performed nitrogen atmosphere.

Language: Английский

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